Answers

Subtract 90/5 from 45/16

1^st number: 2 13/16, 2^nd number: 18 0/5

45/16 - 90/5 is -243/16.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 5 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 16 × 5 = 80,
   45/16 = 45 × 5/16 × 5 = 225/80
3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
   90/5 = 90 × 16/5 × 16 = 1440/80
4. Subtract the two like fractions:
   225/80 - 1440/80 = 225 - 1440/80 = -1215/80
5. After reducing the fraction, the answer is -243/16

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